Furnace arch roof and tile for building the same



p 1933- l. CZAJKOWSKI FURNACE ARCH ROOF AND TILE FOR BUILDING THE SAME Filed Feb. 6, 1951 J: CzaJ/ ykmwsmm.

A TTORNEY.

Patented Sept. 19, 1933 FURNACE ARCH ROOF AND TILE FOR BUILDING THE SAME Ignace Czajkowski, Chicago, Ill.

Application February 6,

6 Claims.

The most commonly employed method for. building furnace arch roofs is building a wooden scaffold under the roof to be built. When the scaffold has been constructed common bricks are employed fromrwhich the roof is built 'upon the scaifold. This method requires considerable lumber and skilled masons to lay the bricks upon the temporary wooden scaffold. The object of the present invention, therefore, is the provision of specially formed tiles to take the place of ordinary bricks, from which an arch roof may bev constructed.

A further object of the present invention is the provision of a row of key tiles upon which rows of other tiles are supported in either direction by cantilever action.

A further object of the present invention is the provision of a key tile, a row of which may be supported by a temporary scaffold and from which rows of other tiles may be suspended in either direction without further support from beneath by cantilever action.-

Another object of the present invention is the provision of a suitably constructed key tile, a number of which are positioned in a row at the center of the roof to be built and anumber of tiles of different construction, which said latter tiles may engage said key tiles,,and a row of said tiles may, by cantilever action,:be supported by the row of said key tiles in either direction.

By my method and by virtue of the construction of my tiles, including the key tile, the roof may be built from the center thereof and the construction may progress towards the supporting side walls of the furnace.

A further object of the present invention is the provision of a key tile as well as side tiles, which go into construction of the arch furnaceroof, which tiles may be provided by suitable, means to interlock, .and which may engage each other in succession from above, the engagement whereof may be arrived at bylinterlocking one tile to the next adjacent one from above, so that one suspends from the other.

With the above general objects in view and others that will appear as the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing and pointed out in the appended claims.

In the drawing forming a part of this application, and in which like designating characters Y refer to corresponding parts throughout the several views,

1931. Serial noislasio Figure 1 is a perspective view of a furnace archroof partly broken away and partly in section to illustrate the invention;

Figure 2 is a section of the roof longitudinally thereof, the view having been taken on line 2+2- of Figure 1; v

Figure 3 is a perspective View of a key tile; Figure 4 is a perspective view of one of the other interlocking tiles;

Figure 5 is a perspective view of another form of key tile adapted to be employed in the building of a straight furnace roof in contra-distinction to the arch roof.

7 Referring in detail to the present drawing there is shown on Figure 1 a furnace, including side walls 10, and roof 11, the latter built in accordance with the tiles constituting the present invention. Said roof 7 11 is arched on transverse cross-section therethrough due to the tapered formation of the tiles which go into the making of the roof.

To commence building of the roof in accordance with the present disclosure, a plurality of.

key tiles, generally indicated by 12 are laid in a row, on a plane corresponding with the center of the roof to be built and transversely thereof. A temporary scaffolding is made beneath said row of key tiles 12 for supporting the same until the roof is completed. Said row of tiles 12 is laid in a manner so that the broadest faces of each tile contact with the broadest faces of the adjacent tiles, as clearly seen on Figs. 1 and 2.

Each of said tiles 12 has a central recess 13 at its upper edge, and said tiles 12, as well as other .tiles later described, are downwardly tapered, so that the completed roof assumesran arched formation on cross-section as seen' on Figures 1 and 5. c I

, When a row of said key tiles 12 has been made upon a temporary support, other tiles are laid to engage the row of said key tiles 12 from each edge of said row of key tiles 12 so that said other tiles may be supported in position by said key tiles due to cantilever action.

Said other tiles cooperating withv said key tiles 12, one of which is best shown on Figure 4, include a substantially rectangular body portion 14, from which neck 15 projects in one direction from the'upper edge thereof. Integrally formed with said neck portion 15 and downwardly projecting therefrom is block 16.

' The edge of the body portion 14, neck portion 15 and block 16 define a hook with the resulting rectangular slot 1'7 into which one of the two projections 18 defining recesses 13 in the key tiles,

is adapted to enter and fit therein when tile 14 is engaged at key tile 12. It is observed that block 16 is of a width which is one-half of the width of recess 13, so that when two tiles 14 are engaged by key tile 12, one from each edge thereof, the two blocks 16 of the two adjacent tiles 14 completely fill recess 13, as clearly seen on Figure 2.

It is further observed that key tile 12 is shorter than tiles 14, so that when the roof is constructed said key tiles 12 are not Visible from above, the projections 18, and the bottom recess 13 being completely covered by neck portions 15 and block 16 of the two tiles 14, one supported at each edge of key tile 12. Projecting from the lower portion and at the opposite edge of tile 14 is a neck portion 19 which is in diagonal relation with neck portion 15 at the opposite edge of the tile. Upwardly projecting from said neck portion 19 is block 20, said neck portion 19 and block 20 in cooperation-with the adjacent edge of body portion oftile 14 define a rectangular slot 21, riser 22 constituting the bottom for said recess 21. The width of riser 22 as well as of slot 21 corresponds to the width of block 16, and. the width of block 20 corresponds to slot 1'7, so that when the next adjacent tile is engaged at the tile which immediately remains in engagement with key tile 12, there is uniform interlocking of tiles 14 in the entire row longitudinally of the roof construction, 'as clearly seen on Figure 2. Each of said tiles 14 is likewise downwardly tapered to correspond to the taper of key tile 12 so as to impart a uniform arch formation on cross-section to the entire roof.

The end tiles 14', although corresponding in construction to tiles 14 are'devoid of neck portion 19 and block 20, the same having uniformly smooth and even edge so as to provide smooth and even end for the constructed roof, as seen on Figure 1.

From the hereinabove description it will be apparent that the number of rows of tiles 14, longitudinally of the roof, corresponds to the number of key tiles 12 transversely arranged in the center of the-roof.

It is further observed that the bottom edge of key tiles 12 is in alinement with the bottom edges of tiles 14, by virtue of which construction the bottom of the roof on longitudinal plane is straight and by virtue of the fact that all tiles are downwardly tapered, the constructed roof will have an arched formation on transverse crosssection.

'When it is desirable to have a straight roof, both on longitudinal and cross sections, uniformly rectangular, in all directions, key tiles 12' are em ployed. Said key tiles 12' have corresponding upwardly disposed projections 18 and recesses 13'.. Of course, other tiles which are arranged edgewise from key tiles 12', in each opposite direction, should likewise be of rectangular'formation on all dimensions.

What I claim as new is: -l. A roof structure comprising a transverse row of key tile units arranged in face to face contact, a series of tile units extending laterally from the ends of each key tile unit, and means carried by the units of said series lying adjacent each key tile unit for interlocking engagement with the upper end of the key tile unit and completely covering said unit.

2. A roof structure comprising a transverse row of key tile units arranged in face to face contact, a series of tile units extending laterally from the ends of each key tile unit, cooperating means carried by the units of each series whereby said units are interlocked one with the other, and means carried by the units of said series lying adjacent each key tile unit for interlocking engagement with the upper end of the latter and completely covering said key tile unit.

3. A roof structure comprising a transverse row of key tile units arranged in face to face contact, each unit having a central recess in its upper edge, a series of tile units extending laterally from the ends of each key tile unit, and the units of said series lying adjacent each key tile unit having portions received by the recess of the latter for interlocking engagement therewith and completely covering the upper end of said key tile units.

4. A roof structure comprising a transverse row of key tile units arranged in face to face contact, each unit having a central recess in its upper edge, a series of tile units extending laterally from the ends of each key tile unit, the units of each series being interlocked one with the other, and the units of said series lying adjacent each key tile unit having portions received by the recess of the latter for interlocking engagement therewith and completely covering the upper end of said key tile unit.

5. A roof structure comprising a transverse row of key tile units arranged in face to face contact, each unit having a central recess in its upper edge, a series of tile units extending laterally from the ends of each key tile unit, and offset blocks formed on the units of said series lying adjacent the key tile unit and received by the recess thereof, and arranged in contacting engagement with each other to completely cover the upper end of said key tile unit.

6. A roof structure comprising a transverse row of substantially rectangular key tile units arranged in face to face contact, each unit having a central recess in its upper edge, a series of substantially rectangular tile units extending laterally from the ends of each key tile unit, each unit of said series having a recess in its upper edge, and an offset block projecting beyond one end thereof for interlocking engagement with the recess of the adjacent unit, and said offset blocks of the units of said series lying adjacent each key tile unit being received by the recess thereof and arranged in face to face contact to completely cover the upper end of said key tile units.

IGNACE CZAJKOWSKI. 

